This is a Link.Bold.italic. Fuu is the daughter of Seizo Kasumi and an unnamed woman. During the Shimabara Rebellion (which was the uprising of Japanese Roman Catholics due to heavy taxes and abuses from officials), her father was one of the leaders in the rebellion. The Japanese sought the help of the Dutch army which helped quell the rebellion down and the Shogunate sought for Seizo's death.
Fearing for his family's life, Seizo ran away to protect his wife and children where Fuu's last memory of him was running through a field of sunflowers. This is why she refers to him as "The Sunflower Samurai" or the "Samurai who smells of sunflowers." Without her father around to support them, Fuu and her mother led a difficult life until her mother died of illness and she worked under an elderly couple name Kikuzo and Ogin in a tea shop.
